Martin Marietta Materials Inc SEC filings MLM
Martin Marietta Materials Inc has 1,000 filings in SEC EDGAR's recent list, going back to Feb 10, 2016. Its latest annual report, Form ARS, was filed on Apr 15, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K/A | Amended current report | Nov 4, 2026 | Aug 21, 2026 |
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2026 | Nov 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | Sep 18, 2026 | — |
| 8-K |
Current report
Material agreement
|
Sep 16, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Aug 25, 2026 | Aug 21, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Aug 24, 2026 | — |
| 3 | Initial insider ownership | Aug 24, 2026 | Aug 21, 2026 |
| 3 | Initial insider ownership | Aug 24, 2026 | Aug 21, 2026 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale, Officer or director change, Regulation FD disclosure
|
Aug 24, 2026 | Aug 21, 2026 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Aug 18, 2026 | Aug 18, 2026 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Aug 14, 2026 | Aug 14, 2026 |
| 424B2 | Prospectus | Aug 13, 2026 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Aug 12, 2026 | Aug 11, 2026 |
| FWP | Free writing prospectus | Aug 11, 2026 | — |
| 424B5 | Prospectus supplement | Aug 10, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 10, 2026 | Aug 10, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 7, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 4, 2026 | Aug 4, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 3, 2026 |
| 10-Q | Quarterly report | Jul 30, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 30, 2026 | Jul 30, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 15, 2026 | Jul 10, 2026 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Jun 29, 2026 | Jun 27, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 29, 2026 | Jun 29, 2026 |
| 11-K | Employee savings plan report | Jun 18, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | May 29, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 3 | Initial insider ownership | May 18, 2026 | May 14, 2026 |
| 3 | Initial insider ownership | May 18, 2026 | May 14, 2026 |
| S-8 | Employee stock plan registration | May 15, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 14, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 3 | Initial insider ownership | May 5, 2026 | May 1, 2026 |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 30, 2026 | Apr 30, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Apr 27, 2026 | Apr 27, 2026 |
| ARS | Annual report to shareholders | Apr 15, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 15, 2026 | May 14, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 3 | Initial insider ownership | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 8-K |
Current report
Acquisition or sale of assets, Regulation FD disclosure
|
Feb 23, 2026 | Feb 23, 2026 |
| S-3ASR | Automatic shelf registration | Feb 19, 2026 | — |
| 10-K | Annual report | Feb 19, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 4 | Insider transaction | Feb 19, 2026 | Feb 17, 2026 |
| 8-K | Current report | Feb 13, 2026 | Feb 11, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 11, 2026 | Feb 11, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 2, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 19, 2025 | Dec 19, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 17, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 28, 2025 |
| S-8 | Employee stock plan registration | Nov 13, 2025 | — |
| 10-Q | Quarterly report | Nov 4, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2025 | Nov 4, 2025 |
| SD | Specialized disclosure (conflict minerals) | Sep 24, 2025 | — |
| 8-K |
Current report
Material agreement
|
Sep 17, 2025 | Sep 16, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 3, 2025 | Sep 3, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 2, 2025 | Aug 29, 2025 |
| 3 | Initial insider ownership | Aug 25, 2025 | Aug 14, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 8, 2025 |
| 144 | Notice of proposed sale | Aug 8, 2025 | — |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement
|
Aug 7, 2025 | Aug 3, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2025 | Aug 3, 2025 |
| 4 | Insider transaction | Jul 9, 2025 | Jul 8, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 8, 2025 | Jul 7, 2025 |
| 11-K | Employee savings plan report | Jun 26, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | Jun 3, 2025 | May 30, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 15, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 15, 2025 | May 15, 2025 |
| 10-Q | Quarterly report | Apr 30, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 30, 2025 | Apr 30, 2025 |
| ARS | Annual report to shareholders | Apr 15, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Apr 15, 2025 | May 15, 2025 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Apr 10, 2025 | Apr 9, 2025 |
| 4 | Insider transaction | Mar 6, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 28, 2025 |
| 144 | Notice of proposed sale | Feb 26, 2025 | — |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 21, 2025 |
| 3 | Initial insider ownership | Feb 25, 2025 | Feb 20, 2025 |
| 10-K | Annual report | Feb 21, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| 4 | Insider transaction | Feb 20, 2025 | Feb 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 12, 2025 | Feb 12, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 20, 2024 | Dec 20, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 12, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 3, 2024 | Dec 3, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Dec 2, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Dec 2, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Dec 2, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 29, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 29, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 29, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Nov 4, 2024 | Nov 4, 2024 |
| 424B2 | Prospectus | Nov 1, 2024 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Nov 1, 2024 | Oct 31, 2024 |
| FWP | Free writing prospectus | Oct 31, 2024 | — |
| 424B5 | Prospectus supplement | Oct 31, 2024 | — |
| 10-Q | Quarterly report | Oct 30, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 30, 2024 | Oct 30, 2024 |
| 8-K |
Current report
Material agreement
|
Sep 19, 2024 | Sep 18, 2024 |
| 8-K | Current report | Sep 18, 2024 | Sep 12, 2024 |
| SD | Specialized disclosure (conflict minerals) | Sep 18, 2024 | — |
| 3 | Initial insider ownership | Sep 4, 2024 | Sep 1, 2024 |
| 4 | Insider transaction | Sep 3, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Sep 3, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Sep 3, 2024 | Aug 30, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K | Current report | Jul 12, 2024 | Jul 8, 2024 |
| 11-K | Employee savings plan report | Jun 27, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 16, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Mining & Quarrying of Nonmetallic Minerals (No Fuels) (SIC 1400)
- Listed as
- MLM (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- NC
- Headquarters
- Raleigh, NC
- SEC filer status
- Large accelerated filer
- SEC CIK
- 916076
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.